The vertically polarized sector antenna systems offered by Laird Technologies are constructed of UV stable fiberglass radomes for extremely long service life in the most demanding conditions. The antennas are constructed using corrosion resistant metal elements and a unique air dielectric system which are more stable than PCB based antenna systems because they don't absorb moisture, which can degrade the performance of PCB based antenna systems. The 14dB sectors come with a stainless steel scissor bracket system for ease of installation and alignment. The 9dBi sector comes with a galvanized steel bracket with stainless steel hardware.